Auto fill of Party field

Provide support for multiple accounts.
    DONE
    
Option to post all non budget transactions

Purge option

True recurring transactions
    Currently only have ability to copy a transaction 

Save application state in the app info block.
    Done:   Save grid position
    
Auto gen of next check number
    Done: Save last check number

Import/Export/Synchronization capabilities.  Would like to be able to 
    synchronize with GnuCash and other PC personal finance programs.
